cost: cumulative repair cost in actual dollars (11 - 3425)
 age: age of car in weeks of ownership (Range 5 - 538)
 miles: miles driven in thousands (Range 0.8 - 74.4)


                Media    Mediana      D. T.        Mín        Máx
cost             1427       1182       1151      11,00       3425
age             279,5      276,0      148,7      5,000      538,0
miles           41,58      43,40      19,96     0,8000      74,40


corr(age, miles) = 0,99646458
Bajo la hipótesis nula de no correlación:
 t(55) = 87,9614, con valor p a dos colas 0,0000